William l



' (No Model.)

W; L. SWEETLANUY PIPE CUTTER.

Patented Feb. 26, 1884.

N. PETERS, Phmrrlillmgnplmn Washing-hm. D. C.

UNITED STATES PATENT OFFICE.

WILLIAM L. SWEETLAND, on NEW HAVEN, comvnoricur, Assielvon' or ONE-HALFTO FELIX OHILLINGWOR'IH, or SAME PLACE.

PIPE-CUTTER.

SPECIFICATION forming part of Letters Patent No. 294,339, dated February26, 1 884. Application filed November 28, 1883. (No model.) I

I To all whom it may col worn.-

Be it known that I,WILI,1AM L. SwnnrLANn,

of New Haven, in the county of New Haven,

Figure 1 shows a perspective view of my im-- proved pipe-cutter; Fig. 2,a detail view of the burr-removing roller; Fig. 3, a detail View of apiece of pipe, showing one end as cut with my improved cutter and theother as cut with the ordinary form of cutter.

The object of my invention is to provide an improved pipe-cutter whichwill leave no burr on the ends of the sections of pipe; and to this endit consists in the construction, arrangement, and combination of parts,as hereinafter set forth, and more specifically pointed out in theclaims.

In the drawings, A designates the frame of the cutter, hooked at oneend, as shown at B, and at the other bent at a right angle to form thearm'O. v

In a slot in the hooked portion B are journaled the cutter-Wheels D D,upon suitable pivot-pins or bolts passing through the portion B.

These wheels are preferably made with the lines of their sides, as seenin cross-section, curved down to the cutting-edge; but, if desired, theymay be made wit-h a straight bevel. A slide, E, is formed so as toembrace the straight portion of the frame A, and to it is swiveled theend of the usual slide adjusting-screw, F, tapped through the arm 0,described above. Upon the other end of the screw is fastened the commonform of handle or hand piece G.

In a mortise or slot in that end of the slide which is toward thecutting-wheels in the hooked end of the frame is journaled, on asuitable screw or pivot-pin, H, the collar I, pro .vided with a sharprib, K, whose edge 70 is a cutting-edge, and is in the same plane withthe edges of the wheels D D, described above. On each side of this rib,which is not high enough to out through the pipe, the face of the rolleris sharply knurled, or provided with short sharp cutting-teeth, as shownat I I.

The operationof my pipe-cutter is as folpipe.

lows; The cutter is applied to the pipe and worked in the well-knownmanner around said pipe. The edges of the cutters D D and of the rib Kon the roller I first cut into and form a deep narrow groove in thesurface of the With the ordinary and heretofore known and constructedpipe-cutters, as the cutting-wheels or fixed cutters cut down into thepipe aburr is formed or forced up on the ends of the pipe-sectionsaround the edges of the cut. This burr prevents the placing of the dieover the end of the pipe, and must be cut or filed down after the pipeis cut off before the die can be put over the pipe end. With mypipe-cutter, as indicated above, the .cutting-rib on the rollerjournaled in the slide is not high enough to cut through the pipe. Thecut around the pipe is at first formed by the two cutter-wheels D D andthe cutting-rib K on roller I. When in the process of cutting the pipethe cut is made by the cutting-wheels too deep for the rib K to belonger effective as a cutter, it follows around in the groove cutandserves as a guide. The knurled portions I I of the roller-face then comeinto contact with the pipe on each side of the out. As the cutting goeson, the portions of the pipe around the edges of the out are pressedupon with great force by the roller, and the knurling on the face of thelatter cuts into each one of the burrs whichare formed on the ends ofpipe-sections as the cutters go deeper into the pipe. This cutting intothe burr by the-knurling serves to remove a portion of such burr, andthe rest of it is completely rolled or pressed down by the roller, sothat no burr remains when the cutting is finished, and the die can beput over the end of the pipe immediately, and Without the necessity offurther cutting or filing of such end.

I contemplate, if it is desired, using in connection with the two ormore cutter-wheels in the hooked end of the frame a knurled rollerwithout any circumferential cutting-rib, as described above. Theknurling, as shown, is made with its ridges running across the face ofthe roller at an angle to the plane of the cutting-edge of the rib K. Ifdesired, it could be cut in spiral, curved, or wave lines, or the faceof the roller could be milled or provided with sharp teeth or ridgesextending in lines parallel to the axis of the roller and at rightangles to the plane of the edge of the rib. I prefer that theburr-removing roller be pivoted or journaled in the slide, as shown; butdo not limit myself to such a construction of cutter. If desired, one ortwo such rollers could be pivoted, in place of the cutters, in the fixedarm of the cutter-head, and one or more cutter-wheels be carried in theopposing end of the slide.

Having thus fully set forth the nature of my invention, what I claimis 1. In a pipe-cutter, in combination with the cutting device, meansfor cutting into and crushing down the burr formed at the edges of thecut, substantially as shown and described.

2. In a pipe-cutter, the knurled or toothed roller adapted to cut androll down the burr formed on the end of the pipe in the process ofcutting, substantially as shown and described.

3. The roller for cutting and rolling down the burrs formed bypipe-cutters upon the pipe at the edges of the cut, provided on its facewith knurled or toothed portions, each adapted to come in contact withand press upon one of said burrs, substantially shown and described.

4. In combination with the cutter-wheels of a pipe-cutter, the roller,formed with a sharp rib in the same plane with the edges of thecutter-wheelsand having its face on each side \VM. L. SWEETIJAND.

\Vitn esses F. OHILLINGWORTH, LEoroLD BEssER.

